The process gas flow rate in the startup heater is low; why is the pressure difference between the inlet and outlet also low?
Thread Content
In the furnace startup phase, the flow rate of the process gas is low – why is the pressure difference between the inlet and outlet then small? Is it true that a higher flow rate results in a larger pressure difference?
It’s a fluid dynamics problem; the pressure difference is roughly proportional to the square of the flow velocity. Therefore, when the flow rate is low, the pressure difference is also low.
The friend on the 2nd floor is right; the gas space becomes larger, and with the bed layer remaining unchanged, the pressure difference will definitely increase